[ndnSIM] GlobalRoutingHelper documentation

Spyridon (Spyros) Mastorakis mastorakis at CS.UCLA.EDU
Thu Jan 28 12:45:49 PST 2016

Hi Silvia,

for the specific function, I am afraid that this is all we have as far as the documentation is concerned.

However, I am not sure that I fully understand your question. Let me clarify some things first:

calculateAllPossibleRoutes will generate routes from every simulated node to every other simulated node. These routes will be used for routing purposes.

However, in NDN, the forwarding strategy is the module used to determine whether multiple paths will be selected for Interest forwarding. That being said, taking a look at the forwarding strategy module might be the right way to go in your case.

Hope that my answer addresses your question.

Spyridon (Spyros) Mastorakis
Personal Website: http://cs.ucla.edu/~mastorakis/ <http://cs.ucla.edu/~mastorakis/>
Internet Research Laboratory
Computer Science Department

> On Jan 28, 2016, at 10:21 AM, Silvia Lins <silvialins at ufpa.br> wrote:
> Hi, I found in http://ndnsim.net/2.0/doxygen/classns3_1_1ndn_1_1GlobalRoutingHelper.html#details <http://ndnsim.net/2.0/doxygen/classns3_1_1ndn_1_1GlobalRoutingHelper.html#details>
> some documentation related to the GlobalRoutingHelper function, and it mentions below a link where I can find more details about its implementation ("boost.org" below):
> "
> void ns3::ndn::GlobalRoutingHelper::CalculateAllPossibleRoutes                   	(	
> )	
> static           
> Calculate all possible next-hop independent alternative routes.
> Refer to the implementation for more details.
> Note that this method is highly experimental and should be used with caution (very time consuming).
> Implementation of route calculation is heavily based on Boost Graph Library See  <http://www.boost.org/doc/libs/1_49_0/libs/graph/doc/table_of_contents.html>http://www.boost.org/doc/libs/1_49_0/libs/graph/doc/table_of_contents.html <http://www.boost.org/doc/libs/1_49_0/libs/graph/doc/table_of_contents.html> for more details
> Definition at line 283 <http://ndnsim.net/2.0/doxygen/ndn-global-routing-helper_8cpp_source.html#l00283> of file ndn-global-routing-helper.cpp <http://ndnsim.net/2.0/doxygen/ndn-global-routing-helper_8cpp_source.html>.
> References ns3::ndn::FibHelper::AddRoute() <http://ndnsim.net/2.0/doxygen/ndn-fib-helper_8cpp_source.html#l00121>, and ns3::ndn::L3Protocol::getForwarder() <http://ndnsim.net/2.0/doxygen/ndn-l3-protocol_8cpp_source.html#l00261>.
> "
> My question is: is there any other/more specific documentation for such function or any other function in ndnSIM capable of simulating mutipath in ICN?
> Thanks in advance,
> Silvia
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